Up for every challenge. The X5 trigger maintains the legacy of X0 shifting with features and technologies optimized for 2x10 EXACT ACTUATION. EXACT ACTUATION: When we launched our road technology from scratch we reapplied our MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10-speed rear shifting. EA helps to simplify/stabilize the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. Features: SRAM’s 2x10 EXACT ACTUATION for precise and dependable 10-speed performance Impulse Technology Specifications: Speeds: 2 Weight: 125g Material: Aluminum Composite Components Hardware: Stainless Steel, 5mm Hex